Yes, banks are the active controllers of this market. But it's not just any Bank.It is true that banks are the big players in the industry.
This is my first time of hearing about bank contacting their customer for forex services.
I suggest you should be careful as there are a lot of scammers posing to be banks employees as a strategy to get your account details for fraud
It's the central banks that are in the control by their interest rates decisions and what have you.